DAZ1 | |||||||||||||||||||||||||
---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|
Identifiers | |||||||||||||||||||||||||
Aliases | DAZ1 , DAZ, SPGY, deleted in azoospermia 1 | ||||||||||||||||||||||||
External IDs | OMIM: 400003 HomoloGene: 88435 GeneCards: DAZ1 | ||||||||||||||||||||||||
| |||||||||||||||||||||||||
| |||||||||||||||||||||||||
| |||||||||||||||||||||||||
Orthologs | |||||||||||||||||||||||||
Species | Human | Mouse | |||||||||||||||||||||||
Entrez |
| ||||||||||||||||||||||||
Ensembl |
| ||||||||||||||||||||||||
UniProt |
| ||||||||||||||||||||||||
RefSeq (mRNA) |
| ||||||||||||||||||||||||
RefSeq (protein) |
| ||||||||||||||||||||||||
Location (UCSC) | Chr Y: 23.13 – 23.2 Mb | n/a | |||||||||||||||||||||||
PubMed search | [2] | n/a | |||||||||||||||||||||||
Wikidata | |||||||||||||||||||||||||
|
Deleted in azoospermia 1, also known as DAZ1, is a protein which in humans is encoded by the DAZ1 gene. [3] [4]
This gene is a member of the DAZ gene family and is a candidate for the human Y-chromosomal azoospermia factor (AZF). Its expression is restricted to pre-meiotic germ cells, particularly in spermatogonia. It encodes an RNA-binding protein that is important for spermatogenesis. Four copies of this gene are found on chromosome Y within palindromic duplications; one pair of genes is part of the P2 palindrome and the second pair is part of the P1 palindrome. Each gene contains a 2.4 kb repeat including a 72-bp exon, called the DAZ repeat; the number of DAZ repeats is variable and there are several variations in the sequence of the DAZ repeat. Each copy of the gene also contains a 10.8 kb region that may be amplified; this region includes five exons that encode an RNA recognition motif (RRM) domain. This gene contains three copies of the 10.8 kb repeat. However, no transcripts containing three copies of the RRM domain have been described; thus the RefSeq for this gene contains only two RRM domains. [3]
DAZ1 has been shown to interact with DAZAP2, [5] DAZL [5] [6] and DAZ associated protein 1. [5]
David C. Page is an American biologist and professor at the Massachusetts Institute of Technology (MIT), the director of the Whitehead Institute, and a Howard Hughes Medical Institute (HHMI) investigator. He is best known for his work on mapping the Y-chromosome and on its evolution in mammals and expression during development. He was cited by Bryan Sykes in Adam's Curse: A Future Without Men.
Y linkage, also known as holandric inheritance, describes traits that are produced by genes located on the Y chromosome. It is a form of sex linkage.
Azoospermia is the medical condition of a man whose semen contains no sperm. It is associated with male infertility, but many forms are amenable to medical treatment. In humans, azoospermia affects about 1% of the male population and may be seen in up to 20% of male infertility situations in Canada.
Y chromosome microdeletion(YCM) is a family of genetic disorders caused by missing genes in the Y chromosome. Many men with YCM exhibit no symptoms and lead normal lives. It is present in a significant number of men with reduced fertility. Reduced sperm production varies from oligozoospermia, significant lack of sperm, or azoospermia, complete lack of sperm.
Azoospermia factor (AZF) is one of several proteins or their genes, which are coded from the AZF region on the human male Y chromosome. Deletions in this region are associated with inability to produce sperm. Subregions within the AZF region are AZFa, AZFb and AZFc. AZF microdeletions are one of the major causes of male infertility for azoospermia and severe oligozoospermia males. AZF is the term used by the HUGO Gene Nomenclature Committee.
Deleted in azoospermia-like is a protein that in humans is encoded by the DAZL gene.
Ubiquitin specific peptidase 9, Y-linked , also known as USP9Y, is an enzyme which in humans is encoded by the USP9Y gene. It is required for sperm production. This enzyme is a member of the peptidase C19 family and is similar to ubiquitin-specific proteases, which cleave the ubiquitin moiety from ubiquitin-fused precursors and ubiquitinylated proteins.
Deleted in azoospermia protein 3 is a protein that in humans is encoded by the DAZ3 gene.
Deleted in azoospermia protein 2 is a protein that in humans is encoded by the DAZ2 gene.
DAZ-associated protein 1 is a protein that in humans is encoded by the DAZAP1 gene.
Pumilio homolog 2 is an RNA-binding protein that in humans is encoded by the PUM2 gene.
40S ribosomal protein S4, Y isoform 1 is a protein that in humans is encoded by the RPS4Y1 gene.
RNA-binding motif protein, Y chromosome, family 1 member A1/C is a protein that in humans is encoded by the RBMY1A1 gene.
Testis-specific chromodomain protein Y 1 is a protein that in humans is encoded by the CDY1 gene.
Synaptonemal complex protein 3 is a protein that in humans is encoded by the SYCP3 gene. It is a component of the synaptonemal complex formed between homologous chromosomes during the prophase of meiosis.
Protein boule-like is a protein that in humans is encoded by the BOLL gene.
DAZ-associated protein 2 is a protein that in humans is encoded by the DAZAP2 gene.
Zinc finger protein DZIP1 is a protein that in humans is encoded by the DZIP1 gene.
The DAZprotein family is a group of three highly conserved RNA-binding proteins that are important in gametogenesis and meiosis. Therefore, mutations in the genes that encode for the DAZ proteins can have detrimental consequences for fertility.
Renee Reijo Pera is a stem cell biologist and the President of the McLaughlin Research Institute in Great Falls, MT. She previously served as Vice President of Research and Economic Development, for more than 8 years at the California Polytechnic State University and at Montana State University. Reijo Pera's research focuses on human development and disease, in particular, on the development and differentiation of somatic and germ cell lineages and neurodegenerative diseases such as Parkinson's disease and also infertility in men and women.